Re: ABS problem
I've just had the man from the garage call me back. He was bemused by it, until he remembered that my 147's a DIESEL.
He said there's a servo assisted brake pump on the diesels, with a one way valve, and this generates a vacuum for the brakes. It can develop a fault so that when you go over a bump, it does something (I can't remember what exactly) and it causes it to lose its vacuum. This makes the brake pedal go very hard, and the brakes won't work until the vacuum is restored.
What happened to me last time was this:
Wet raised section of road with thick metal joints across the road.
Whilst braking normally for a roundabout, I hit a joint which caused a big bump. At this point the brake pedal 'changed', like the ABS had fired, but the braking was dramatically reduced. I took my foot off the brake and tried again, but no change. After taking my foot off for a second time, it braked properly again, and I narrowly avoided the back of the van in front of me by braking very hard. When the brakes worked properly on the 3rd attempt, the ABS didn't need to fire, even though I was braking quite hard - it wasn't hard enough to expect the ABS to fire.
On describing this to the garage, he seemed confident that it's the servo assisted brake pump, because he said that if it lost its vacuum, the pedal would go hard, and the brakes wouldn't work very well. When I mentioned that they worked 3rd time, he said that thay didn't work second time, as the vacuum hadn't had chance to be restored, but by the 3rd time it had.
It makes sense to me. Booked it in.
To the original poster: Is yours a diesel 147 as well?